CN112440791B

CN112440791B - A DC charging pile capable of charging and discharging electric vehicles and conducting battery tests

Info

Publication number: CN112440791B
Application number: CN202011267917.XA
Authority: CN
Inventors: 陈滔
Original assignee: Hunan Gnoo New Energy Technology Co ltd
Current assignee: Hunan Gnoo New Energy Technology Co ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-12-17
Anticipated expiration: 2040-11-13
Also published as: CN112440791A

Abstract

The invention belongs to the technical field of charging piles, and particularly relates to a direct-current charging pile capable of charging and discharging electric vehicles and testing batteries, which comprises a cabinet body, wherein a cabinet door is installed on the cabinet body; the cabinet body is provided with fixing legs; a first mounting plate and a second mounting plate are mounted in the cabinet body; the first mounting plate and the second mounting plate are both fixedly provided with electric elements; the cabinet body is internally provided with a mounting box; a fan is arranged in the mounting box; a through hole is formed in the bottom surface of the mounting box and is positioned right below the fan; a heat dissipation plate is arranged above the mounting box; a ventilation cavity is formed in the heat dissipation plate; the ventilation cavity is communicated with the mounting box; the heat dissipation plate is provided with micropores; an inner air outlet and an outer air outlet are formed in the cabinet body and are communicated with each other; the charging pile has the advantages of good heat dissipation effect and strong rain-proof capability in rainy days, and can prevent dust, rainwater and insects from entering the charging pile to influence the normal operation of the charging pile.

Description

Direct current charging pile capable of charging and discharging electric automobile and testing battery

Technical Field

The invention belongs to the technical field of charging piles, and particularly relates to a direct-current charging pile capable of charging and discharging electric vehicles and testing batteries.

Background

At present, along with the improvement of living standard of people, environmental protection is more and more emphasized by people, energy conservation and emission reduction are the most basic environmental protection measures, so that the use of green energy is more and more accepted by people. Electric vehicles are receiving great attention from all countries in the world as clean and low-carbon green vehicles. In recent years, clean energy electric vehicles have been rapidly developed, and the demand of users for charging facilities has been increasing. Current direct current fills electric pile is because belonging to power equipment, and it is especially important with rain-proof dustproof, and current direct current fills electric pile and is through seting up the louvre on the protection casing, increases the weather shield on the louvre and realizes heat dissipation and rain-proof, but the setting up of weather shield has hindered hot-air's flow, and the weather shield also is difficult to stop the rainwater when wind and rain are great, leads to direct current to fill electric pile's heat dissipation and rain-proof unable guarantee.

The prior art also has some technical schemes, such as a chinese patent with application number CN201921266101.8, including a charging pile main body, a first door body is installed on one side surface of the charging pile main body, a winding device is installed on the adjacent side surface of the first door body, a second door body is installed on one side surface of the charging pile main body, the first door body and the second door body are oppositely arranged, a handle is respectively arranged on the first door body and the second door body, a first slope is arranged on the upper surface of the charging pile main body, a second slope is arranged on the upper surfaces of the first door body and the second door body, the first slope extends from left to right, a drainage groove and the winding device are not overlapped in the vertical direction, the upper ends of the charging pile main body, the first door body and the second door body are designed by slopes, and the slopes of the first door body and the second door body are opposite to the slopes of the charging pile main body, the charging pile in the scheme can avoid water accumulation at the top of the charging pile in the using process, but when raining and blowing, the rainwater still can enter into and fill electric pile, arouses to fill electric pile trouble.

Disclosure of Invention

In order to make up for the defects of the prior art and improve the rainproof capability of the charging pile under the condition of ensuring good heat dissipation, the invention provides the direct current charging pile capable of charging and discharging an electric vehicle and carrying out battery test.

The technical scheme adopted by the invention for solving the technical problems is as follows: the direct current charging pile capable of charging and discharging an electric automobile and carrying out battery test comprises a cabinet body, wherein a cabinet door is fixedly installed on the cabinet body through a bolt; a rubber sealing strip is arranged between the cabinet door and the cabinet body; the lower surface of the cabinet body is fixedly provided with fixing feet; a gap is formed between the lower surface of the cabinet body and the ground; a first mounting plate and a second mounting plate are fixedly mounted in the cabinet body; the mounting plate II is positioned above the mounting plate I; the first mounting plate and the second mounting plate are both fixedly provided with electric elements; the electric element comprises a power supply module, an AC/DC conversion module and a controller; a mounting box is fixedly mounted on the bottom surface in the cabinet body; the mounting box is tightly attached to the side face, opposite to the cabinet door, in the cabinet body; a fan is fixedly arranged in the mounting box; the fans are multiple in number and are uniformly distributed in the mounting box; the bottom surface of the mounting box is provided with a through hole; the through hole penetrates through the bottom surface of the cabinet body and is communicated with the outside; the through holes are multiple and are all positioned right below the fan; a primary screen plate is fixedly arranged in the through hole; a heat dissipation plate is fixedly arranged above the mounting box; the heat dissipation plate penetrates through the first mounting plate and the second mounting plate; the upper end of the heat dissipation plate is positioned above the second mounting plate; the heat dissipation plate is tightly attached to the side face, opposite to the cabinet door, in the cabinet body; a ventilation cavity is formed in the heat dissipation plate; the ventilation cavity is communicated with the inner space of the mounting box through a mounting groove on the mounting box; micropores are uniformly formed in the heat dissipation plate; the micropore is communicated with the ventilation cavity and the space in the cabinet body; an inner air outlet is formed in the side surface in the cabinet body; an air outlet is formed in the side surface outside the cabinet body; the outer air outlet is communicated with the inner air outlet; the shape of a connecting channel between the outer air outlet and the inner air outlet is Z-shaped; the inner air outlet is positioned above the outer air outlet;

when the air cooling cabinet works, external air is pumped into the mounting box by the fan, then the air with lower temperature is diffused into the cabinet body through the heat dissipation plate, the temperature in the cabinet body is reduced, meanwhile, because the heat dissipation plate is vertically arranged, a section of vertical upward movement process exists in the process that the external air enters the cabinet body, impurities such as dust in the pumped external air can be settled under the action of gravity, the impurities such as the external dust are prevented from entering the cabinet body, the normal work of the electric elements in the cabinet body is prevented from being influenced, the service life of the electric elements is shortened, meanwhile, because the heat dissipation plate is vertically arranged, external insects cannot enter the cabinet body through the through holes in the mounting box, the impurities such as the external dust and the insects can be further prevented from entering the cabinet body under the condition of ensuring heat dissipation, the normal operation of the electric elements is prevented from being influenced, and meanwhile, after the external air enters the cabinet body, finally through going out the connecting channel between gas port and the interior gas outlet and discharging to the external world, take away the internal heat of cabinet, reduce the internal temperature of cabinet, simultaneously, because connecting channel layer "Z" font, external liquid drop can not enter into the cabinet internal through connecting channel, promotes the rain-proof ability of the cabinet body.

Preferably, a filter screen is fixedly arranged in the mounting groove; the diameter of the meshes on the filter screen is smaller than that of the meshes on the primary screen plate; a reed is fixedly arranged on the side wall of the mounting groove; the reed is positioned above the filter screen; the reed is blown by airflow to shake; a hemispherical rubber ball is arranged on the lower surface of the reed; slightly knocking the filter screen when the reed shakes;

the during operation, when filling electric pile normal work operation, fan in the mounting box lasts the operation, with external air suction to the cabinet internal, reduce the internal temperature of cabinet, and simultaneously, because fixed mounting has the filter screen in the mounting groove, the air that can step forward filters, avoid the dust to enter into the cabinet internal, and simultaneously, at the in-process of the air admission cabinet body, the air current blows the reed, make the reed take place to shake, the filter screen is slightly strikeed to the reed through the shake, make the filter screen take place to vibrate, shake off the dust of interception on the filter screen, the life or the clean interval of single of extension filter screen, use cost is reduced, the number of times is maintained in the reduction.

Preferably, the middle section of the connecting channel between the outer air outlet and the inner air outlet is vertically arranged; the inner wall surface of the connecting channel is smooth; a layer of polytetrafluoroethylene waterproof coating is sprayed on the inner wall of the connecting channel;

the during operation, through set up vertical section in the interface channel, can improve the protective capacities of interface channel to the rainwater, the rainwater enters into the internal possibility of cabinet when reducing raining, avoid the rainwater to enter into the internal, lead to the electric elements to damage, make and fill electric pile unable normal use, simultaneously, the polytetrafluoroethylene coating of spraying can prevent to a certain extent to condense in the steam interface channel on the interface channel inner wall, and finally enter into the internal possibility of cabinet, and simultaneously, the coating through the spraying makes the inner wall of interface channel more smooth, increase the internal degree of difficulty of cabinet that the insect got into from the interface channel climbing, reduce the possibility that the insect enters into the internal cabinet.

Preferably, a water storage tank is fixedly arranged in the cabinet body; the water storage tank is positioned above the second mounting plate and is not in contact with the electric elements in the cabinet body; a liquid through cavity is formed in the heat dissipation plate; the upper end of the heat dissipation plate is fixedly connected with the lower surface of the water storage tank; the bottom surface of the water storage tank is provided with a connecting groove; the liquid through cavity is communicated with the inner space of the water storage tank through a connecting groove; a plurality of groups of heat pipes are fixedly arranged in the first mounting plate and the second mounting plate, and the structures of the first mounting plate and the second mounting plate are consistent; one end of the heat pipe is positioned in the first mounting plate, and the other end of the heat pipe is inserted into the heat dissipation plate; one end of the heat pipe, which is positioned in the heat dissipation plate, penetrates through the ventilation cavity in the heat dissipation plate and enters the liquid through cavity; the contact surface between the heat pipe and the heat dissipation plate is kept sealed;

when the heat pipe type electric charging pile works, the heat pipe arranged in the first mounting plate and the second mounting plate can relatively accelerate the collection and transfer of heat generated by the electric element, so that the temperature of the electric element is quickly reduced to enable the electric element to work normally, meanwhile, the heat collected and transferred by the heat pipe is transferred into water in the liquid through cavity, the heat is stored and slowly released by water, the problem that the heat generated by the charging pile cannot be timely transferred to the outside when the charging pile works at high power to cause heat accumulation and influence the normal operation of the electric element is avoided, meanwhile, because the ventilation cavity and the liquid through cavity are both arranged in the heat dissipation plate, the heat absorbed by the water in the liquid through cavity is taken away when outside air passes through the heat dissipation plate, the water in the liquid through cavity is convenient to continuously store the heat, the heat is slowly released when the charging pile works at low power, the problem that the heat is not timely dissipated when the charging pile works at high power to cause the over-high temperature of the electric element is solved, affecting normal operation.

Preferably, a movable cavity is formed in the side wall of the cabinet body and is communicated with the middle section vertically arranged in the connecting channel; a first sealing block is arranged in the movable cavity; the surface of the first closing block is flush with the inner wall of the middle section of the connecting channel; the movable cavity is filled with a first expansion body; the first expansion body is made of a high-molecular water-absorbing expansion material; micro grooves I are uniformly formed in the lower surface of the first sealing block; the first sealing block seals the connecting channel under the pushing of the first expansion body; a sealing box is fixedly arranged above the mounting box; a second sealing block is arranged in the sealing box; the closed box is filled with a second expansion body; the second expansion body is made of a high-molecular water-absorbing expansion material; the closed box is communicated with a ventilation cavity in the heat dissipation plate; the lower surface of the second sealing block is uniformly provided with second microgrooves; the second sealing block seals the ventilation cavity under the pushing of the second expansion body;

when in work, under the normal state, the first expansion body and the second expansion body do not act, the connecting channel and the ventilation cavity are kept smooth, meanwhile, when rainstorm occurs, rainwater enters the mounting groove after submerging the lower part of the cabinet body, and then the rainwater contacts the expansion body II through the microgrooves II on the sealing block II, so that the expansion body II expands to push the sealing block I to seal the ventilation cavity, the rainwater is prevented from continuously entering the cabinet body, and loss is reduced, meanwhile, when the installation position of the charging pile is relatively low and meets heavy rain, the rainwater cannot be discharged in time, so that the upper end of the cabinet body is submerged continuously after the lower end of the cabinet body is submerged by the rainwater, after rainwater enters the connecting channel, the rainwater contacts the first expansion body through the first microgrooves on the first sealing blocks, so that the first expansion body expands to push the first sealing blocks to seal the connecting channel, the rainwater is prevented from entering the cabinet body, and loss is reduced.

Preferably, the electrical element in the cabinet body comprises a monitoring module; when the electric automobile is connected and charged, the monitoring module detects the battery of the automobile, judges the health state of the battery of the automobile, sends related data to the controller, and then sends the data to the mobile phone of the automobile owner through the Internet of things by the controller to remind the automobile owner to go to a 4S store to maintain and maintain the battery in time; the monitoring module monitors the vehicle battery in the charging process, generates a charging report after charging is finished, and sends the report to the mobile phone of the vehicle owner; when the monitoring module is charging, the charging degree of the vehicle battery is detected in real time, and the charging state is fed back to the controller in time, so that the charging current and the charging voltage are adjusted or the charging is stopped through the controller, the phenomenon that the vehicle battery is overcharged, the service life of the battery is influenced, safety accidents are caused, and the charging efficiency is improved.

The invention has the following beneficial effects:

1. according to the direct-current charging pile capable of charging and discharging electric vehicles and testing the batteries, the internal air outlet, the external air outlet, the heat dissipation plate, the ventilation cavity, the mounting box and the fan are arranged, external air can be smoothly sent into a cabinet body of the charging pile, heat dissipation in the charging pile is completed, the temperature in the charging pile is reduced, and normal operation of electric elements in the charging pile is guaranteed.

2. According to the direct-current charging pile capable of charging and discharging electric vehicles and testing batteries, the expansion body I, the sealing block I, the expansion body II and the sealing block II are arranged, so that a ventilation passage communicated with the outside can be timely sealed when the charging pile is immersed by rainwater, the possibility that rainwater enters the charging pile after the charging pile is submerged by the external rainwater is effectively reduced, the bearing time of the charging pile under rainwater immersion is prolonged, the loss caused by water immersion of the charging pile is reduced, and the maintenance difficulty is reduced.

Drawings

The invention will be further explained with reference to the drawings.

Fig. 1 is a schematic view of a first structure of a charging pile according to the present invention;

fig. 2 is a schematic view of a second structure of the charging pile of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

FIG. 4 is an enlarged view of a portion of FIG. 2 at B;

FIG. 5 is an enlarged view of a portion of FIG. 4 at C;

in the figure: the cabinet comprises a cabinet body 1, fixing legs 11, a first mounting plate 12, a second mounting plate 13, an electric element 14, an inner air outlet 15, an outer air outlet 16, a movable cavity 17, a first expansion body 171, a first sealing block 172, a first microgroove 173, a cabinet door 2, a mounting box 3, a fan 31, a primary screen plate 32, a filter screen 33, a reed 34, a mounting groove 35, a sealing box 4, a second expansion body 41, a second sealing block 42, a second microgroove 43, a water storage tank 5, a connecting groove 51, a heat pipe 6, a heat dissipation plate 7, a ventilation cavity 71 and a liquid through cavity 72.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 5, the direct current charging pile capable of charging and discharging an electric vehicle and performing a battery test according to the present invention includes a cabinet body 1, wherein a cabinet door 2 is fixedly installed on the cabinet body 1 through a bolt; a rubber sealing strip is arranged between the cabinet door 2 and the cabinet body 1; the lower surface of the cabinet body 1 is fixedly provided with a fixed foot 11; a gap is formed between the lower surface of the cabinet body 1 and the ground; a first mounting plate 12 and a second mounting plate 13 are fixedly mounted in the cabinet body 1; the second mounting plate 13 is positioned above the first mounting plate 12; the first mounting plate 12 and the second mounting plate 13 are both fixedly provided with an electric element 14; the electrical element 14 comprises a power supply module, an AC/DC conversion module and a controller; a mounting box 3 is fixedly mounted on the bottom surface in the cabinet body 1; the mounting box 3 is tightly attached to the side surface, which is opposite to the cabinet door 2, in the cabinet body 1; a fan 31 is fixedly arranged in the mounting box 3; the fans 31 are distributed in the mounting box 3 uniformly; a through hole is formed in the bottom surface of the mounting box 3; the through hole penetrates through the bottom surface of the cabinet body 1 and is communicated with the outside; the through holes are multiple and are all positioned right below the fan 31; a primary screen plate 32 is fixedly arranged in the through hole; a heat dissipation plate 7 is fixedly arranged above the mounting box 3; the heat dissipation plate 7 penetrates through the first mounting plate 12 and the second mounting plate 13; the upper end of the heat dissipation plate 7 is positioned above the second mounting plate 13; the heat dissipation plate 7 is tightly attached to the side surface, facing the cabinet door 2, in the cabinet body 1; a ventilation cavity 71 is formed in the heat dissipation plate 7; the ventilation cavity 71 is communicated with the inner space of the mounting box 3 through the mounting groove 35 on the mounting box 3; micropores are uniformly formed in the heat dissipation plate 7; the micropores are communicated with the ventilation cavity 71 and the space in the cabinet body 1; an inner air outlet 15 is formed in the side surface in the cabinet body 1; an outer air outlet 16 is formed in the side surface outside the cabinet body 1; the outer air outlet 16 is communicated with the inner air outlet 15; the shape of a connecting channel between the outer air outlet 16 and the inner air outlet 15 is Z-shaped; the inner air outlet 15 is positioned above the outer air outlet 16;

when the cabinet works, the fan 31 is used for pumping outside air into the mounting box 3, then the air with lower temperature is diffused into the cabinet body 1 through the heat dissipation plate 7, the temperature in the cabinet body 1 is reduced, meanwhile, because the heat dissipation plate 7 is vertically arranged, a section of vertical upward movement process exists in the process that the outside air enters the cabinet body 1, impurities such as dust in the pumped outside air can be settled under the action of gravity, the impurities of the outside dust are prevented from entering the cabinet body 1 to influence the normal work of the electric elements 14 in the cabinet body 1, the service life of the electric elements 14 is shortened, meanwhile, because the heat dissipation plate 7 is vertically arranged, outside insects can not enter the cabinet body 1 through the through holes in the mounting box 3, the impurities such as the outside dust and the insects can be further prevented from entering the cabinet body 1 under the condition of ensuring heat dissipation, and the normal operation of the electric elements 14 is influenced, meanwhile, after the outside air enters the cabinet body 1, the outside air is finally discharged to the outside through a connecting channel between the outer air outlet 16 and the inner air outlet 15, the heat in the cabinet body 1 is taken away, the temperature in the cabinet body 1 is reduced, and meanwhile, because the connecting channel layer is Z-shaped, outside liquid drops cannot enter the cabinet body 1 through the connecting channel, and the rainproof capacity of the cabinet body 1 is improved.

As an embodiment of the present invention, a filter screen 33 is fixedly installed in the installation groove 35; the diameter of the meshes on the filter screen 33 is smaller than that of the meshes on the primary screen plate 32; a reed 34 is fixedly arranged on the side wall of the mounting groove 35; the reed 34 is positioned above the filter screen 33; the reed 34 is shaken by the air flow; a hemispherical rubber ball is arranged on the lower surface of the reed 34; the reed 34 slightly knocks the filter screen 33 when shaking;

the during operation, when filling electric pile normal work operation, fan 31 in mounting box 3 continuously operates, with external air suction to the cabinet body 1 in, reduce the internal temperature of cabinet, and simultaneously, because mounting groove 35 internal fixation has filter screen 33, the air that can step forward filters, avoid the dust to enter into the cabinet body 1 in, and simultaneously, at the in-process of the air admission cabinet body 1, the air current blows reed 34, make reed 34 take place the shake, reed 34 through the shake slightly strikes filter screen 33, make filter screen 33 vibrate, shake off the dust of interception on the filter screen 33, the life or the clean interval of single of extension filter screen 33, and the use cost is reduced, and the number of times of maintenance is reduced.

As an embodiment of the present invention, the middle section of the connecting channel between the outer air outlet 16 and the inner air outlet 15 is vertically arranged; the inner wall surface of the connecting channel is smooth; a layer of polytetrafluoroethylene waterproof coating is sprayed on the inner wall of the connecting channel;

the during operation, through set up vertical section in the interface channel, can improve the protective capacities of interface channel to the rainwater, the rainwater enters into the possibility of the internal 1 of cabinet when reducing raining, avoid the rainwater to enter into the internal 1 of cabinet, lead to electric elements 14 to damage, make and fill electric pile normal use, and simultaneously, the polytetrafluoroethylene coating of spraying can prevent to a certain extent to condense in the steam interface channel on the interface channel inner wall, and finally enter into the possibility of the internal 1 of cabinet, and simultaneously, the coating through the spraying makes the inner wall of interface channel smoother, increase the degree of difficulty of the internal 1 of cabinet that the insect got into from the interface channel climbing, reduce the possibility that the insect enters into the internal 1 of cabinet.

As an embodiment of the present invention, a water storage tank 5 is fixedly installed in the cabinet body 1; the water storage tank 5 is positioned above the second mounting plate 13 and is not in contact with the electric elements 14 in the cabinet body 1; a liquid through cavity 72 is formed in the heat dissipation plate 7; the upper end of the heat dissipation plate 7 is fixedly connected with the lower surface of the water storage tank 5; the bottom surface of the water storage tank 5 is provided with a connecting groove 51; the liquid through cavity 72 is communicated with the inner space of the water storage tank 5 through the connecting groove 51; a plurality of groups of heat pipes 6 are fixedly arranged in the first mounting plate 12 and the second mounting plate 13, and the structures of the two are consistent; one end of the heat pipe 6 is positioned in the first mounting plate 12, and the other end of the heat pipe is inserted into the heat dissipation plate 7; one end of the heat pipe 6 positioned in the heat dissipation plate 7 penetrates through the ventilation cavity 71 in the heat dissipation plate 7 and enters the liquid through cavity 72; the contact surface between the heat pipe 6 and the heat dissipation plate 7 is kept sealed;

during operation, the heat pipe 6 installed in the first mounting plate 12 and the second mounting plate 13 can relatively accelerate the collection and transfer of heat generated by the electrical element 14, so as to rapidly reduce the temperature of the electrical element 14 and enable the electrical element to work normally, meanwhile, the heat collected and transferred by the heat pipe 6 is transferred to water in the liquid through cavity 72, and the heat is stored and slowly released by water, so that the problem that the heat generated during high-power operation of the charging pile cannot be timely transferred to the outside, which causes heat accumulation and influences the normal operation of the electrical element 14 is avoided, meanwhile, because the air through cavity 71 and the liquid through cavity 72 are both located in the heat dissipation plate 7, the heat absorbed by the water in the liquid through cavity 72 is taken away when outside air passes through the heat dissipation plate 7, the water in the liquid through cavity 72 can continuously store heat, the heat is slowly released when the charging pile operates at low power, and the charging pile is prevented from operating at high power, the heat dissipation is not timely, which causes the temperature of the electrical component 14 to be too high, and the normal operation is affected.

As an embodiment of the invention, a movable cavity 17 is formed in the side wall of the cabinet body 1, and the movable cavity 17 is communicated with the middle section vertically arranged in the connecting channel; a first sealing block 172 is arranged in the movable cavity 17; the surface of the first closing block 172 is flush with the inner wall of the middle section of the connecting channel; the movable cavity 17 is filled with a first expansion body 171; the first expansion body 171 is made of a high-molecular water-absorbing expansion material; micro grooves 173 are uniformly formed in the lower surface of the first sealing block 172; the first closing block 172 closes the connecting channel under the pushing of the first expansion body 171; a sealing box 4 is fixedly arranged above the mounting box 3; a second sealing block 42 is installed in the sealing box 4; the sealing box 4 is filled with a second expansion body 41; the second expansion body 41 is made of a high-molecular water-absorbing expansion material; the closing box 4 is communicated with a ventilation cavity 71 in the heat dissipation plate 7; the lower surface of the second sealing block 42 is uniformly provided with second microgrooves 43; the second sealing block 42 seals the ventilation cavity 71 under the pushing of the second expansion body 41;

when the rain water charging pile works, under a normal state, the first expansion body 171 and the second expansion body 41 do not act, the connecting channel and the ventilation cavity 71 are kept smooth, meanwhile, when heavy rain falls, rainwater submerges the lower part of the cabinet body 1 and enters the mounting groove 35, then the rainwater contacts the second expansion body 41 through the microgrooves 43 on the sealing block second 42, the second expansion body 41 expands to push the first sealing block 172 to seal the ventilation cavity 71, the rainwater is prevented from continuously entering the cabinet body 1 and losing a little, meanwhile, when the mounting position of the charging pile is relatively low, the rainwater cannot be timely discharged when heavy rain falls, the rainwater submerges the lower end of the cabinet body 1 and then continuously submerges the upper end of the cabinet body 1, after the rainwater enters the connecting channel, the rainwater contacts the first expansion body 171 through the microgrooves 173 on the first sealing block 172, and the first expansion body 171 expands to push the first sealing block 172 to seal the connecting channel, prevent rainwater from entering the cabinet body 1, and reduce loss.

As an embodiment of the present invention, the electric components 14 in the cabinet 1 include a monitoring module; when the electric automobile is connected and charged, the monitoring module detects the battery of the automobile, judges the health state of the battery of the automobile, sends related data to the controller, and then sends the data to the mobile phone of the automobile owner through the Internet of things by the controller to remind the automobile owner to go to a 4S store to maintain and maintain the battery in time; the monitoring module monitors the vehicle battery in the charging process, generates a charging report after charging is finished, and sends the report to the mobile phone of the vehicle owner; when the monitoring module is charging, the charging degree of the vehicle battery is detected in real time, and the charging state is fed back to the controller in time, so that the charging current and the charging voltage are adjusted or the charging is stopped through the controller, the phenomenon that the vehicle battery is overcharged, the service life of the battery is influenced, safety accidents are caused, and the charging efficiency is improved.

The specific working process is as follows:

when the air conditioner works, the fan 31 is used for sucking outside air into the mounting box 3, then the air with lower temperature is diffused into the cabinet body 1 through the heat dissipation plate 7, the temperature in the cabinet body 1 is reduced, meanwhile, as the heat dissipation plate 7 is vertically arranged, a section of vertical upward movement process exists in the process that the outside air enters the cabinet body 1, impurities such as dust and the like in the sucked outside air can be settled under the action of gravity, and meanwhile, after the outside air enters the cabinet body 1, the outside air is finally discharged to the outside through a connecting channel between the outer air outlet 16 and the inner air outlet 15, and the heat in the cabinet body 1 is taken away; when the charging pile normally works and operates, the fan 31 in the mounting box 3 continuously operates to suck outside air into the cabinet body 1, meanwhile, in the process that the air enters the cabinet body 1, the reed 34 is blown by airflow to shake the reed 34, the vibrating reed 34 slightly knocks the filter screen 33 to vibrate the filter screen 33, and dust intercepted on the filter screen 33 is shaken off; the vertical section is arranged in the connecting channel, so that the protective capability of the connecting channel for rainwater can be improved, meanwhile, the polytetrafluoroethylene coating sprayed on the inner wall of the connecting channel can prevent condensation in the water vapor connecting channel to a certain extent, meanwhile, the inner wall of the connecting channel is smoother through the sprayed coating, and the difficulty of insects climbing into the cabinet body 1 from the connecting channel is increased; the heat pipe 6 arranged in the first mounting plate 12 and the second mounting plate 13 can relatively accelerate the collection and transfer of heat generated by the electric element 14, quickly reduce the temperature of the electric element 14, meanwhile, the heat collected and transferred by the heat pipe 6 is transferred to water in the liquid through cavity 72, the heat is stored and slowly released by using the water, and meanwhile, because the air vent cavity 71 and the liquid through cavity 72 are both positioned in the heat dissipation plate 7, the heat absorbed by the water in the liquid through cavity 72 is taken away when outside air passes through the heat dissipation plate 7; under the normal state, the first expansion body 171 and the second expansion body 41 do not act, the connecting channel and the ventilation cavity 71 are kept smooth, meanwhile, when rainstorm occurs, rainwater submerges the lower portion of the cabinet body 1, and then enters the mounting groove 35, the rainwater is in contact with the second expansion body 41 through the second microgrooves 43 on the second sealing blocks 42, the first expansion body 41 expands to push the first sealing blocks 172 to seal the ventilation cavity 71, meanwhile, when the mounting position of the charging pile is relatively low, the rainwater cannot be timely discharged when the rainstorm occurs, so that the rainwater submerges the lower end of the cabinet body 1, the upper end of the cabinet body 1 continues to be submerged, after the rainwater enters the connecting channel, the rainwater is in contact with the first expansion body 171 through the first microgrooves 173 on the first sealing blocks 172, and the first expansion body 171 expands to push the first sealing blocks 172 to seal the connecting channel.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A DC charging pile capable of charging and discharging an electric vehicle and performing battery testing, comprising a cabinet (1), characterized in that: a cabinet door (2) is fixedly installed on the cabinet (1) by bolts; A rubber sealing strip is installed between the cabinet door (2) and the cabinet body (1); fixing feet (11) are fixedly installed on the lower surface of the cabinet body (1); the lower surface of the cabinet body (1) There is a gap between it and the ground; a mounting plate one (12) and a mounting plate two (13) are fixedly installed in the cabinet body (1); the mounting plate two (13) is located above the mounting plate one (12); Electrical components (14) are fixedly installed on the first mounting plate (12) and the second mounting plate (13); the electrical components (14) include a power supply module, an AC/DC conversion module, and a controller; the cabinet body An installation box (3) is fixedly installed on the bottom surface of the inside of (1); the installation box (3) is closely attached to the side of the cabinet body (1) facing the cabinet door (2); the installation box (3) A fan (31) is fixedly installed inside; a plurality of the fans (31) are distributed evenly in the installation box (3); through holes are formed on the bottom surface of the installation box (3); the through holes pass through The bottom surface of the cabinet body (1) is communicated with the outside world; there are a plurality of said through holes, all of which are located directly below the fan (31); a primary screen plate (32) is fixedly installed in the through holes; the installation box (3) A heat dissipation plate (7) is fixedly installed on the top of the ); the heat dissipation plate (7) passes through the mounting plate one (12) and the mounting plate two (13); ); the heat dissipation plate (7) is close to the side of the cabinet body (1) facing the cabinet door (2); the heat dissipation plate (7) is provided with a ventilation cavity (71); the ventilation cavity (71) communicate with the inner space of the installation box (3) through the installation groove (35) on the installation box (3); the heat dissipation plate (7) is evenly provided with micro-holes; the micro-holes communicate with the ventilation cavity (71) and the space in the cabinet body (1); the inner side surface of the cabinet body (1) is provided with an inner air outlet (15); the outer side surface of the cabinet body (1) is provided with an outer air outlet (16); The outer air outlet (16) is kept in communication with the inner air outlet (15); the shape of the connecting passage between the outer air outlet (16) and the inner air outlet (15) is a "Z" shape; the inner air outlet (15) is located above the air outlet (16);

A movable cavity (17) is opened in the side wall of the cabinet body (1), and the movable cavity (17) is communicated with a vertically arranged middle section in the connecting channel; a closing block (17) is installed in the movable cavity (17). (172); the surface of the closing block one (172) is kept flush with the inner wall of the middle section of the connecting channel; the movable cavity (17) is filled with an expansion body (171); the expansion body one (171) ) is made of polymer water-absorbing swelling material; the lower surface of the closed block one (172) is evenly provided with a micro-groove one (173); the closed block one (172) is pushed by the expansion body one (171), The connection channel is closed; a closure box (4) is fixedly installed above the installation box (3); a closure block two (42) is installed in the closure box (4); the closure box (4) is filled with The second expansion body (41); the second expansion body (41) is made of a polymer water-absorbing expansion material; the closed box (4) communicates with the ventilation cavity (71) in the heat dissipation plate (7); the closed block Two micro-grooves (43) are evenly opened on the lower surface of the second (42); the second closing block (42) closes the ventilation cavity (71) under the push of the second expanding body (41).

2 . The DC charging pile capable of charging and discharging electric vehicles and conducting battery tests according to claim 1 , wherein a filter screen (33) is fixedly installed in the installation groove (35); the filter screen The mesh diameter on the (33) is smaller than the mesh diameter on the primary mesh plate (32); a reed (34) is fixedly installed on the side wall of the installation groove (35); the reed (34) is located in the filter above the net (33); the reed (34) vibrates when blown by the airflow; a hemispherical rubber ball is arranged on the lower surface of the reed (34); the reed (34) is slightly knocked when it vibrates Click on the filter (33).

3. A DC charging pile capable of charging and discharging electric vehicles and conducting battery tests according to claim 1, characterized in that: the middle of the connection channel between the outer air outlet (16) and the inner air outlet (15) The sections are arranged vertically; the inner wall surface of the connecting channel is smooth; a layer of polytetrafluoroethylene waterproof coating is sprayed on the inner wall of the connecting channel.

4. A DC charging pile capable of charging and discharging electric vehicles and conducting battery tests according to claim 1, characterized in that: a water storage tank (5) is fixedly installed in the cabinet body (1); the water storage tank (5) Located above the second mounting plate (13), and not in contact with the electrical components (14) in the cabinet (1); the heat dissipation plate (7) is provided with a liquid-passing cavity (72); the heat dissipation plate The upper end of (7) is fixedly connected with the lower surface of the water storage tank (5); the bottom surface of the water storage tank (5) is provided with a connecting groove (51); the liquid passage chamber (72) is connected to the water storage tank (5) The internal space is kept in communication through the connecting groove (51); a plurality of sets of heat pipes (6) are fixedly installed in the first mounting plate (12) and the second mounting plate (13), and the two have the same structure; the heat pipes (6) One end of the heat pipe (6) is located in the first mounting plate (12), and the other end is inserted into the heat dissipation plate (7). ) and enter into the liquid passage chamber (72); the contact surface between the heat pipe (6) and the heat dissipation plate (7) is kept sealed.

5 . The DC charging pile capable of charging and discharging electric vehicles and performing battery testing according to claim 1 , wherein: the electrical components ( 14 ) in the cabinet ( 1 ) include a monitoring module; the When the electric vehicle is connected and charged, the monitoring module detects the battery of the vehicle, judges the health status of the battery of the vehicle, and sends the relevant data to the controller. Go to the 4S store to maintain and maintain the battery; the monitoring module monitors the vehicle battery during the charging process, generates a charging report after charging is completed, and sends the report to the owner's mobile phone; the monitoring module is charging in real time. Detect the charging level of the vehicle battery, and feed back the charging status to the controller in time, so that the charging current and voltage can be adjusted or stopped by the controller to avoid overcharging of the vehicle battery, affecting the battery life and causing safety accidents, and improving the charging efficiency.